4042538 has 8 divisors (see below), whose sum is σ = 6086532. Its totient is φ = 2013696.

The previous prime is 4042523. The next prime is 4042543. The reversal of 4042538 is 8352404.

It can be written as a sum of positive squares in 2 ways, for example, as 3775249 + 267289 = 1943^2 + 517^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4042538² = 32684226962888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3095 + ... + 4202.

Almost surely, 2^4042538 is an apocalyptic number.

4042538 is a deficient number, since it is larger than the sum of its proper divisors (2043994).

4042538 is a wasteful number, since it uses less digits than its factorization.

4042538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7576.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 4042538 is about 2010.6063761960. The cubic root of 4042538 is about 159.3008294117.

The spelling of 4042538 in words is "four million, forty-two thousand, five hundred thirty-eight".